Hx of her2+ ca in left breast. breast implants in both breast after tx. now have pain in r breast, negative mammogram last month, no lumps noted. ?

See your oncologist: Unfortunately, mammograms may not detect all signs of cancer , especially in early stages. Suggest you talk to your oncologist and/ or primary care physician and breast surgeon about the pain in your breast and the best ways to follow up. A sonogram may provide more information.

Mammograms: don't find everything, across the board they are about 80% sensitive. Talk to your doctor. Ultrasound may be the next imaging step.

Fibrocystic changes: You could have fibrocystic changes. This is the most common cause of breast pain. There is usually not a mass but lumpy tissue. It can be aggravated by caffeine, stress, menstrual cycle and hormonal medications like Tamoxifen and birth control pills. Contact your breast surgeon or oncologist for a breast exam.